package day04;

public class SwitchCaseDemo {
    public static void main(String[] args) {
        int num = 2;
        switch(num){
            case 1://if(num==1)
                System.out.println(111);
                break;
            case 2://以此为入口
                System.out.println(222);
                break;//跳出switch
            case 3:
                System.out.println(333);
                break;
            default://所有case都诶匹配时执行
                System.out.println(666);
        }
    }
}
